Options for R code chunks. When running R code, the
object opts_chunk (default options) is not
modified by chunk headers (local chunk options are merged
with default options), whereas opts_current
(current options) changes with different chunk headers
and it always reflects the options for the current chunk.
Usage
opts_chunk
opts_current
Arguments
format
List of 4
$ get :function (name, default = FALSE)
$ set :function (...)
$ merge :function (values)
$ restore:function (target = value)
Details
Normally we set up the global options once in the first
code chunk in a document using opts_chunk$set(),
so that all latter chunks will use these options.
Note the global options set in one chunk will not affect
the options in this chunk itself, and that is why we
often need to set global options in a separate chunk.
References
Usage: http://yihui.name/knitr/objects
A list of available options:
http://yihui.name/knitr/options#chunk_options